GB753227A - Polyisocyanate modified polyesters - Google Patents
Polyisocyanate modified polyestersInfo
- Publication number
- GB753227A GB753227A GB1698853A GB1698853A GB753227A GB 753227 A GB753227 A GB 753227A GB 1698853 A GB1698853 A GB 1698853A GB 1698853 A GB1698853 A GB 1698853A GB 753227 A GB753227 A GB 753227A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copolyester
- diisocyanate
- acid
- heated
- naphthylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
A rubber-like material is obtained by reacting an organic polyisocyanate with a copolyester formed from ethylene glycol, succinic acid and an aliphatic alpha-omega-dicarboxylic acid containing 5-10 carbon atoms, the molecular proportions of the acids being from 1.2 to 4.0 of succinic acid to 1 of the other acid. Preferably the copolyester has a molecular weight of 1,500-10,000 and the amount of polyisocyanate used is such that there are 1.0-2.0 isocyanate groups present for each end group of the copolyester. The reaction may be modified by the addition of water, glycols or diamines. Specified polyisocyanates are tetramethylene-, hexamethylene-, p-phenylene-, m-phenylene-, toluylene-, diphenyl-4 : 41-, diphenylmethane-4 : 41-, diphenyl ether-4 : 41-, and naphthylene-diisocyanates, and toluene-2 : 4 : 6-, triphenylmethane-4 : 41 : 411-, and diphenyl-2 : 4 : 41-triisocyanates. The copolyesters used in the examples have hydroxy numbers of 22.6-62.5 and acid numbers of 0.2-1.1 and are made (a) by heating together under reduced pressure a low polyester of ethylene glycol and succinic acid with a low polyester of ethylene glycol and adipic acid, or (b) by heating a mixture of ethylene glycol, succinic acid and adipic acid first at normal pressure and then under reduced pressure. In examples: (1) and (2) the dried copolyester is heated with naphthylene-1 : 5-diisocyanate and then a jet of steam is directed on the surface of the mix which breaks down to a crumb which is passed through a mill and moulded; (3), (4) and (5) the dried copolyester is heated with adipic acid and naphthylene-1 : 5-diisocyanate or diphenyl-4 : 41-diisocyanate under reduced pressure, and the mixture poured into a mould and further heated; (6) the copolyester is heated with toluylene-2 : 4-diisocyanate and the product heated on a rubber mill with naphthylene-1 : 5-diisocyanate and dimethylcyclohexylamine and cured. The invention of Specifications 719,539 and 721,896 are disclaimed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE529733D BE529733A (en) | 1953-06-19 | ||
| GB1698853A GB753227A (en) | 1953-06-19 | 1953-06-19 | Polyisocyanate modified polyesters |
| FR1102420D FR1102420A (en) | 1953-06-19 | 1954-06-16 | Artificial rubbery materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1698853A GB753227A (en) | 1953-06-19 | 1953-06-19 | Polyisocyanate modified polyesters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB753227A true GB753227A (en) | 1956-07-18 |
Family
ID=10087206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1698853A Expired GB753227A (en) | 1953-06-19 | 1953-06-19 | Polyisocyanate modified polyesters |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE529733A (en) |
| FR (1) | FR1102420A (en) |
| GB (1) | GB753227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3142081A (en) * | 1962-11-21 | 1964-07-28 | Gen Tire & Rubber Co | Polyurethane reinforced brush |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569146B1 (en) * | 1992-05-08 | 2000-02-09 | Showa Highpolymer Co., Ltd. | Polyester film |
| US5314969A (en) * | 1992-05-11 | 1994-05-24 | Showa Highpolymer Co., Ltd. | Polyester sheet |
| JP2882756B2 (en) * | 1994-10-12 | 1999-04-12 | 昭和高分子株式会社 | Stretched hollow molded article comprising an aliphatic polyester composition |
-
0
- BE BE529733D patent/BE529733A/xx unknown
-
1953
- 1953-06-19 GB GB1698853A patent/GB753227A/en not_active Expired
-
1954
- 1954-06-16 FR FR1102420D patent/FR1102420A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3142081A (en) * | 1962-11-21 | 1964-07-28 | Gen Tire & Rubber Co | Polyurethane reinforced brush |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1102420A (en) | 1955-10-20 |
| BE529733A (en) |
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